JPS6171118A - Opening revision control method of edger mill roll - Google Patents

Opening revision control method of edger mill roll

Info

Publication number
JPS6171118A
JPS6171118A JP59194345A JP19434584A JPS6171118A JP S6171118 A JPS6171118 A JP S6171118A JP 59194345 A JP59194345 A JP 59194345A JP 19434584 A JP19434584 A JP 19434584A JP S6171118 A JPS6171118 A JP S6171118A
Authority
JP
Japan
Prior art keywords
opening
slab
edger mill
width
roll
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP59194345A
Other languages
Japanese (ja)
Inventor
Susumu Touyama
頭山 奨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP59194345A priority Critical patent/JPS6171118A/en
Publication of JPS6171118A publication Critical patent/JPS6171118A/en
Pending legal-status Critical Current

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  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE:To perform the control of an opening revision with good accuracy by giving to the arithmetic unit of the opening revising quantity of an edger mill roll the plastic constant calculated from the opening variation quantity since the starting time of the width rolling of a slab and the variation quantity of the width rolling load. CONSTITUTION:The roll opening of an edger mill 1 is controlled with revision via an opening revising device 5 based on the functional command transmitted from a function generation command device 4 at the width rolling time of the tip part (and rear end part) of a slab 3 when the slab 3 is fed to the edger mill 1. At the width rolling time of the medium part of the slab 3 the detected value being from a roll opening detector 6 and width rolling load detector 7 is taken in with a variable sampling period and the quotient of the both is operated, also those are averaged. The operated value of the plastic constant being from the plastic constant operating device 9 operating the plastic constant of the slab 3 is then given to the operating device 8 of the opening revising quantity and the roll opening of the edger mill 1 is revised and controlled via the opening revising device 5 with the operated value of the opening revised quantity by the device 8.

Description

【発明の詳細な説明】 「産業上の利用分野」 本発明は、例えば、スラブの粗圧延ラインにおけるエツ
ジヤ−ミルロールの開度修正制御方法に関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for controlling the opening degree of an edger mill roll in, for example, a slab rough rolling line.

「従来の技術) 粗圧延ラインにおけるエツジヤ−ミルによってスラブの
幅圧延を行うに当り、スラブの幅圧延開始時からのエツ
ジヤ−ミルロールの開III動量および幅圧延荷重から
ゲージメーター式にエツジヤ−ミルロールの開度修正量
を演算する開度修正量演算装置の演算値に基づき、開度
修正装置を介してエツジヤ−ミルロールの開度を修正制
御する方法によって、スラブの全長にわたる幅圧延を行
った場合、スラブの先端部および後端部では塑性変形特
性がスラブの中間部と異なることや、短かい間で急激に
幅変動を起こすため、十分な嘔制御効果が得られないこ
とが多い。
``Prior art'' When width rolling a slab by an edger mill in a rough rolling line, the width of the edger mill roll is measured using a gauge meter based on the opening III movement of the edger mill roll and the width rolling load from the start of width rolling of the slab. When width rolling is performed over the entire length of the slab by a method of correcting and controlling the opening of the edger mill roll via the opening correction device based on the calculated value of the opening correction amount calculation device that calculates the opening correction amount, Because the plastic deformation characteristics at the leading and trailing ends of the slab are different from those at the middle of the slab, and because width fluctuations occur rapidly in a short period of time, a sufficient deformation control effect cannot often be obtained.

そこで従来は、急激な幅変動を起こすスラブの先端部お
よび後端部の幅圧延時は、関数発生指令装置からの関数
指令に基づき、開度修正装置を介してエツジヤ−ミルロ
ールの開度を修正制御し、スラブの中間部の幅圧延時は
、前記関数φ令に基づく開度修正制御に代えて、前記開
度修正量演算値に基づく開度修正wJaを行っている。
Therefore, conventionally, when rolling the width of the leading and trailing ends of slabs, which cause sudden width fluctuations, the opening of the edger mill roll was corrected via an opening correction device based on a function command from a function generation command device. During width rolling of the intermediate portion of the slab, instead of the opening correction control based on the function φ command, the opening correction wJa is performed based on the calculated opening correction amount value.

「発明が解決しようとする問題点」 前記のようなエツジヤ−ミルロールの開度修正量は、ミ
ル定数と、板幅変動量と、圧延されているスラブの幅方
向の塑性定数から決定すべきであるが、現状では、前記
スラブの塑性定数は単に銅稙等によって、予め区分され
たテーブルに納められた値を用いており、圧延されるス
ラブ毎について正しい塑性定数が用いられてはいなく、
従って圧延すべき各スラブそれぞれに最も適したエツジ
ヤ−ミルロールの開度修正制御を精度よく行うことがで
きなかった。
``Problems to be Solved by the Invention'' The amount of correction of the opening of the edger mill roll as described above should be determined from the mill constant, the amount of plate width variation, and the plastic constant in the width direction of the slab being rolled. However, at present, the plastic constants of the slabs are simply the values stored in pre-classified tables by copper mills, etc., and the correct plastic constants are not used for each slab to be rolled.
Therefore, it has not been possible to accurately control the opening degree of the edger mill rolls to be most suitable for each slab to be rolled.

「問題点を解決するための手段」 本発明は、かくの如き従来の問題点を解決すべくしたも
のであって、その構成を第1図により説明する。
"Means for Solving the Problems" The present invention is intended to solve the problems of the conventional art as described above, and its configuration will be explained with reference to FIG.

第1図は、粗圧延ラインの最終スタンドを例示したもの
であって、1はエツジヤ−ミル、2は水平ミル、3は圧
延すべきスラブである。
FIG. 1 shows an example of the final stand of a rough rolling line, where 1 is an edger mill, 2 is a horizontal mill, and 3 is a slab to be rolled.

スラブ3の粗圧延に際し、エツジヤ−ミル1のロールは
、スラブ3毎に予め演算された開度に設定される。
When rough rolling the slab 3, the rolls of the edger mill 1 are set to an opening degree calculated in advance for each slab 3.

スラブ3がエツジヤ−ミル1に供給されると、スラブ3
の先端部(および後端部)の幅圧延時は、関数発生指令
装置4からの関数指令に基づき、開度修正装置5を介し
てエツジヤ−ミル1のロール開度を修正制御する。
When the slab 3 is supplied to the edger mill 1, the slab 3
During width rolling of the leading end (and trailing end) of the roller, the roll opening of the edger mill 1 is corrected and controlled via the opening correcting device 5 based on a function command from the function generating command device 4.

そしてスラブ3の中間部の幅圧延時は、前記関数指令に
基づく開度修正制御に代えて、前記スラブ3の幅圧延開
始時からのエツジヤ−ミル1のロール開度検出器6によ
るロール開度検出値および幅圧延荷重検出器7による幅
圧延荷重検出値を記憶し、それ等の変wJJffiから
ゲージメーター式にエツジヤ−ミル1のロール開度修正
量を演算する開度修正量演算装置8の演算値に基づき、
前記開度修正装置5を介してエツジヤ−ミルlのロール
開度を修正制御する方法において、前記ロール開度検出
器6と幅圧延荷重検出器7からの検出値を可変のサンプ
リング周期で取込み、かつ両者の商を演算すると共に、
それ等を平均することでスラ、プ3の塑性定数を演算す
る塑性定数演算装置9からの塑性定数演算値を、前記開
度修正量演算装置8への演算入力として与え、開度修正
量演算装置8による前記開度修正量の演算値を補正する
ようにしたのである。
During width rolling of the intermediate portion of the slab 3, instead of the opening correction control based on the function command, the roll opening is determined by the roll opening detector 6 of the edger mill 1 from the start of width rolling of the slab 3. An opening correction amount calculating device 8 stores the detected value and the width rolling load detected by the width rolling load detector 7, and calculates the roll opening correction amount of the edger mill 1 using a gauge meter method from these changes wJJffi. Based on the calculated value,
In the method of correcting and controlling the roll opening of the edger mill l via the opening correction device 5, the detected values from the roll opening detector 6 and the width rolling load detector 7 are taken in at a variable sampling period, And while calculating the quotient of both,
The plastic constant calculation value from the plastic constant calculation device 9, which calculates the plastic constant of the slurry and pulley 3 by averaging them, is given as a calculation input to the opening correction amount calculation device 8, and the opening correction amount is calculated. The calculated value of the opening correction amount by the device 8 is corrected.

「発明の効果」 以上述べた如く、本発明によれば、エツジヤ−ミルロー
ルの開度修正量演算装置への演算入力として、スラブの
幅圧延開始時からの開度変ILII量と幅圧延荷重変動
量とから演算した塑性定数を与えるので、圧延す゛べき
各スラブそれぞれに最も適したエツジヤ−ミルロールの
開度修正制御を精度よく行うことができる。
"Effects of the Invention" As described above, according to the present invention, the amount of opening change ILII and the width rolling load fluctuation from the start of width rolling of the slab are used as calculation inputs to the edge mill roll opening correction amount calculation device. Since the plasticity constant calculated from the amount is given, it is possible to accurately control the opening degree of the edger mill roll that is most suitable for each slab to be rolled.

因みに、本発明方法によってスラブの幅圧延を行った場
合(第2図)と、従来方法によってスラブの幅圧延を行
った場合(第3図)とを比較してみると、エツジヤ−ミ
ルの入側と出側のスラブの幅変動量は、本発明方法によ
る場合は、3.Ouから/、4Z jlgへと幅変動量
が減少しているが、従来方法による場合は、2.2uか
ら逆に3.6IllIへと増加しており、従来方法では
、圧延すべ含スラブに最も適したエツジヤ−ミルミール
の開度修正制御が精度よく行われていないことが判かる
Incidentally, when comparing the width rolling of slabs by the method of the present invention (Figure 2) and the case of width rolling of slabs by the conventional method (Figure 3), it is found that the input of the edger mill is When using the method of the present invention, the amount of width variation of the side and exit side slabs is 3. The amount of width variation decreases from Ou to 4Z jlg, but when using the conventional method, it increases from 2.2u to 3.6IllI. It can be seen that the opening correction control of the suitable edger mill meal is not performed accurately.

なお、第2図に示す場合と、第3図に示す場合とでは、
スラブの長さが相互に異なるが、他の寸法、規格、圧延
スケジュールは両者とも同一であり、テーブル値はλト
ン/絹である。
In addition, in the case shown in Fig. 2 and the case shown in Fig. 3,
Although the lengths of the slabs are different from each other, other dimensions, specifications, and rolling schedules are the same for both, and the table value is λton/silk.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明方法の制御回路のブロック図、第2図は
本発明方法によってスラブの幅圧延を行った場合のスラ
ブの幅変動量とエツジヤ−ミルロールの動きを示すグラ
フ、第3図は従来方法によってスラブの幅圧延を行った
場合のスラブの幅変1111ffiとエツジヤ−ミルロ
ールの動きを示すグラフである。 l・・エツジヤ−ミル、2・・水平ミル、3・・スラブ
4・・関数発生指令装置、5・・開度修正装置。 6・・ロール開度検出器、7・・幅圧延荷重検出器。
Fig. 1 is a block diagram of the control circuit of the method of the present invention, Fig. 2 is a graph showing the width variation of the slab and the movement of the edger mill roll when width rolling of the slab is performed by the method of the present invention, and Fig. 3 is a graph showing the movement of the edger mill roll. It is a graph showing the change in the width of the slab 1111ffi and the movement of the edger mill roll when the width of the slab is rolled by the conventional method. 1. Edge mill, 2. Horizontal mill, 3. Slab 4. Function generation command device, 5. Opening degree correction device. 6. Roll opening degree detector, 7. Width rolling load detector.

Claims (1)

【特許請求の範囲】[Claims] スラブの先端部および後端部の幅圧延時は、関数発生指
令装置からの関数指令に基づき、開度修正装置を介して
エツジヤーミルロールの開度を修正制御し、スラブの中
間部の幅圧延時は、前記関数指令に基づく開度修正制御
に代えて、前記スラブの幅圧延開始時からのエツジヤー
ミルロールの開度変動量および幅圧延荷重変動量からゲ
ージメーター式にエツジヤーミルロールの開度修正量を
演算する開度修正量演算装置の演算値に基づき、前記開
度修正装置を介してエツジヤーミルロールの開度を修正
制御する方法において、前記開度変動量と幅圧延荷重変
動量とからスラブの塑性定数を塑性定数演算装置により
演算し、その塑性定数演算値を、前記開度修正量演算装
置への補正演算入力として与え、開度修正量演算装置に
よる前記開度修正量の演算値を補正することを特徴とす
るエツジヤーミルロールの開度修正制御方法。
When rolling the width of the leading and trailing ends of the slab, the opening degree of the edger mill roll is corrected and controlled via the opening degree correction device based on the function command from the function generation command device, and the width of the middle portion of the slab is rolled. During rolling, instead of the opening correction control based on the function command, the edger mill roll is adjusted using a gauge meter based on the opening variation of the edger mill roll and the width rolling load variation from the start of width rolling of the slab. In the method of correcting and controlling the opening of an edger mill roll through the opening correction device based on the calculated value of an opening correction amount calculation device that calculates the opening correction amount of the opening correction amount and width rolling. The plastic constant of the slab is calculated from the load fluctuation amount by a plastic constant calculation device, the calculated plastic constant value is given as a correction calculation input to the opening correction amount calculation device, and the opening correction amount calculation device calculates the opening degree. A method for controlling the opening degree of an edger mill roll, comprising correcting a calculated value of a correction amount.
JP59194345A 1984-09-14 1984-09-14 Opening revision control method of edger mill roll Pending JPS6171118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59194345A JPS6171118A (en) 1984-09-14 1984-09-14 Opening revision control method of edger mill roll

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59194345A JPS6171118A (en) 1984-09-14 1984-09-14 Opening revision control method of edger mill roll

Publications (1)

Publication Number Publication Date
JPS6171118A true JPS6171118A (en) 1986-04-12

Family

ID=16323034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59194345A Pending JPS6171118A (en) 1984-09-14 1984-09-14 Opening revision control method of edger mill roll

Country Status (1)

Country Link
JP (1) JPS6171118A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016143068A1 (en) * 2015-03-10 2016-09-15 東芝三菱電機産業システム株式会社 Plate width control device for rolled material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016143068A1 (en) * 2015-03-10 2016-09-15 東芝三菱電機産業システム株式会社 Plate width control device for rolled material
JPWO2016143068A1 (en) * 2015-03-10 2017-08-31 東芝三菱電機産業システム株式会社 Sheet width control device for rolled material
US10668514B2 (en) 2015-03-10 2020-06-02 Toshiba Mitsubishi-Electric Industrial Systems Corporation Plate width control device for material to be rolled

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